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exo2: implement SmcGenerateAesKek, SmcLoadAesKey

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Michael Scire 2020-05-15 11:10:28 -07:00 • committed by SciresM
parent 864b6085a8
commit bf546d5fb3
8 changed files with 239 additions and 65 deletions
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11
exosphere2/program/source/smc/secmon_smc_random.cpp
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@ -26,10 +26,7 @@ namespace ams::secmon::smc {
SmcResult GenerateRandomBytesImpl(SmcArguments &args) {
/* Validate the input size. */
const size_t size = args.r[1];
if (size > MaxRandomBytes) {
return SmcResult::InvalidArgument;
}
SMC_R_UNLESS(size <= MaxRandomBytes, InvalidArgument);
/* Create a buffer that the se can generate bytes into. */
util::AlignedBuffer<hw::DataCacheLineSize, MaxRandomBytes> buffer;
@ -69,11 +66,7 @@ namespace ams::secmon::smc {
} else {
/* Otherwise, we'll retrieve some bytes from the cache. */
const size_t size = args.r[1];
/* Validate the input size. */
if (size > MaxRandomBytes) {
return SmcResult::InvalidArgument;
}
SMC_R_UNLESS(size <= MaxRandomBytes, InvalidArgument);
/* Get random bytes from the cache. */
GetRandomFromCache(std::addressof(args.r[1]), size);